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    • 62. 发明申请
    • Light emitting diode driving circuit and optical transmitter for use in optical fiber link
    • 用于光纤链路的发光二极管驱动电路和光发射机
    • US20050168419A1
    • 2005-08-04
    • US11048883
    • 2005-02-03
    • Takayuki Shimizu
    • Takayuki Shimizu
    • G09G3/32H01L33/00H03K17/78H04B10/28H05B33/08H05B37/00
    • H05B33/0818H05B33/0854Y02B20/347
    • An LED driving circuit includes: (a) a current mirror circuit having N-channel MOS transistors whose respective gates are connected with each other, (b) a constant current source for supplying an LED driving current to an N-channel MOS transistor 4, (c) an LED connection terminal, connected with the N-channel MOS transistors, for connecting the LED, (d) an inverter and an input-terminal respectively for inputting, to a source of the N-channel MOS transistor, an ON/OFF signal for controlling ON/OFF of the LED, and (e) a peaking circuit, connected with a drain and source of the N-channel MOS transistor, for generating a peaking current used in peaking a current flowing into the LED. With this arrangement, it is possible to provide an LED driving circuit that easily realizes low current consumption and high-speed emission for the LED. With such an LED driving circuit, an optical transmitter for use in an optical fiber link can also be realized.
    • LED驱动电路包括:(a)具有各栅极彼此连接的N沟道MOS晶体管的电流镜电路,(b)用于向N沟道MOS晶体管4提供LED驱动电流的恒流源, (c)与N沟道MOS晶体管连接的用于连接LED的LED连接端子,(d)反相器和输入端,分别用于向N沟道MOS晶体管的源极输入ON / OFF信号,以及(e)与N沟道MOS晶体管的漏极和源极连接的峰化电路,用于产生用于峰值流入LED的电流的峰值电流。 通过这种布置,可以提供容易实现LED的低电流消耗和高速发射的LED驱动电路。 利用这种LED驱动电路,也可以实现用于光纤链路的光发射机。
    • 63. 发明申请
    • Document management system having document transmission device, document management server, and document management client
    • 文件管理系统具有文件传输装置,文件管理服务器和文件管理客户端
    • US20050131907A1
    • 2005-06-16
    • US11003436
    • 2004-12-06
    • Noriko MatsuzawaTakayuki Shimizu
    • Noriko MatsuzawaTakayuki Shimizu
    • G06F12/14G06F12/00G06F17/30G06T1/00H04N1/00
    • G06F17/30011
    • In a control method for a document management system in which a document transmission device capable of transmitting image data, a document management server of associating image data with a folder as a document and storing and managing the associated image data and folder, and a document management client of browsing the image data of the stored document are connected through a network the server receives and stores registration control information for controlling a document registration process, from the client, transmits the stored registration control information to the device, based on a registration control information acquisition request transmitted from the device, and receives, from the device, the transmitted and designated registration control information and the image data, and stores the received image data as the document on the basis of the received registration control information. Thus, it is possible to easily manage the registration control information.
    • 在其中能够发送图像数据的文档传输装置的文档管理系统的控制方法中,将图像数据与文件夹相关联的文档管理服务器作为文档,并且存储和管理关联的图像数据和文件夹以及文档管理 浏览存储文件的图像数据的客户端通过服务器接收并存储用于控制文档注册处理的登记控制信息的网络连接,从客户端基于注册控制信息将存储的登记控制信息发送到设备 从设备发送的获取请求,并且从设备接收发送和指定的注册控制信息和图像数据,并且基于接收到的注册控制信息存储接收的图像数据作为文档。 因此,可以容易地管理登记控制信息。
    • 68. 发明授权
    • LED drive circuit, LED illumination component, LED illumination device, and LED illumination system
    • LED驱动电路,LED照明组件,LED照明装置和LED照明系统
    • US08536798B2
    • 2013-09-17
    • US13217350
    • 2011-08-25
    • Hideo MatsudaAtsushi KanamoriTakayuki Shimizu
    • Hideo MatsudaAtsushi KanamoriTakayuki Shimizu
    • H05B37/02
    • H05B33/0815H05B33/0848
    • An LED drive circuit is provided that is connectable to a phase-control light controller and drives an LED load by use of a voltage obtained by rectifying a phase-controlled alternating current voltage inputted from the phase-control light controller. The LED drive circuit includes: a first phase angle detection portion that detects a phase angle in a present cycle; a second phase angle detection portion that detects a phase angle in a cycle preceding the present cycle by at least one cycle; a bias portion that generates a detection signal by adding a predetermined delay time to a phase angle obtained by averaging the phase angle detected by the first phase angle detection portion and the phase angle detected by the second phase angle detection portion; and a drive portion that starts current supply to the LED load at timing based on the detection signal generated by the bias portion.
    • 提供一种LED驱动电路,其可连接到相位控制光控制器,并且通过使用通过对从相位控制光控制器输入的相控交流电压进行整流而获得的电压来驱动LED负载。 LED驱动电路包括:第一相位角检测部,其检测当前周期中的相位角; 第二相位角检测部分,其在所述当前周期之前的循环中以至少一个周期检测相位角; 偏置部,其通过将由所述第一相位角检测部检测出的相位角求平均化的预定延迟时间与由所述第二相位角检测部检测出的相位角相加而产生检测信号; 以及驱动部,其基于由偏置部生成的检测信号在定时开始向LED负载供电。